北京朝陽(yáng)區(qū)高三二模化學(xué)試題及答案 2009.5.8
可能用到的相對(duì)原子質(zhì)量:
H 1 C 12 N 14 O 16 Fe 56
5.下列說(shuō)法不正確的是
A.變質(zhì)的油脂有難聞的特殊氣味,是因?yàn)橛椭l(fā)生了水解反應(yīng)
B.用稀雙氧水清洗傷口可以殺菌消毒
C.碳酸氫鈉可以用來(lái)治療胃酸過(guò)多癥
D.為減弱溫室效應(yīng),除了減少CO2排放外,還可將CO2轉(zhuǎn)化成其它可燃物質(zhì)
6.下列反應(yīng)的離子方程式書(shū)寫(xiě)正確的是
A.氯化鎂的水解:Mg2+ + 2H2O Mg (OH)2↓ + 2H+
B. 鐵溶于稀硝酸:Fe + 2H+=Fe2++ H2↑
C.將NaOH溶液滴入過(guò)量的Ca(HCO3)2溶液中:HCO3-+ Ca2+ +
OH―= CaCO3↓+H2O
D. NaHCO3溶液與Al2(SO4)3溶液混合:2Al3+ +3HCO3-=Al2(CO3)3↓+3H+
7. NA為阿伏加德羅常數(shù),下列敘述中正確的是
A.0.1 mol PCl3中形成共價(jià)鍵的電子數(shù)是0.3NA
B.100 mL 1 mol/L NaHSO4 溶液中HSO4―數(shù)是0.1NA
C.標(biāo)準(zhǔn)狀況下,11.2
L CO2和O3混合氣體中含有的原子數(shù)是1.5 NA
D.17
g H2O2完全分解,轉(zhuǎn)移電子數(shù)是1NA
8.下列實(shí)驗(yàn)操作正確的是
A.做銀鏡反應(yīng)實(shí)驗(yàn)后的試管內(nèi)壁附有銀,可用氨水清洗
B.將飽和氯化鐵溶液煮沸,可制得氫氧化鐵膠體
C.配制一定物質(zhì)的量濃度的硫酸溶液時(shí),只需使用1次玻璃棒
D.欲從碘水中分離出I2,可將適量的CCl4加入碘水中振蕩?kù)o置分層后分液
9. 下列物質(zhì)中,既能與NaOH溶液反應(yīng),又能與鹽酸反應(yīng),還能發(fā)生水解反應(yīng)的是
① AlCl3 ② NaHSO4 ③ (NH4)2CO3 ④
⑤
NaHCO3
A.① ④ ⑤ B.③
⑤ C.④
⑤ D.全部
10.為證明鐵的金屬活動(dòng)性比銅強(qiáng),某同學(xué)設(shè)計(jì)了如下一些方案:
方 案
現(xiàn)象或產(chǎn)物
① 將鐵片置于CuSO4溶液中
鐵片上有亮紅色物質(zhì)析出
② 將鐵絲和銅絲分別在氯氣燃燒
產(chǎn)物分別為FeCl3和CuCl2
③ 將鐵片和銅片分別放入熱濃硫酸中
產(chǎn)物分別為Fe2(SO4)3和CuSO4
④ 將銅片置于FeCl3溶液中
銅片逐漸溶解
⑤ 將鐵片和銅片置于盛有稀硫酸的燒杯中,并用導(dǎo)線連接
鐵片溶解,銅片上有氣泡產(chǎn)生
能根據(jù)現(xiàn)象或產(chǎn)物證明鐵的金屬活動(dòng)性比銅強(qiáng)的方案一共有
A.2種
B.3種
C.4種
D.5種
11.下列說(shuō)法或表示方法正確的是
A.反應(yīng)物的總能量低于生成物的總能量時(shí),該反應(yīng)一定不能發(fā)生
B.在10l kPa、25 ℃時(shí),1 g H2完全燃燒生成氣態(tài)水,放出120.9 kJ的熱量,則氫氣的燃燒熱為241.8 kJ/mol
C.已知:2SO2 (g) + O2 (g) 2SO3
(g) ;△H = -98.3 kJ/mol。將1 mol SO2和0.5 mol O2充入一密閉容器中反應(yīng),放出49.15 kJ 的熱量
D.由石墨比金剛石穩(wěn)定可知:C(金剛石,s)= C(石墨,s) ;△H<0
12.已知某溶液中只存在OH―、H+、Cl―、NH4+四種離子,其離子濃度可能有如下關(guān)系:
① c(Cl―)>c(NH4+)>c(H+)>c(OH―)
② c(Cl―)>c(NH4+)>c(OH―)>c(H+)
③ c(NH4+)>c(Cl―)>c(OH―)>c(H+)
④ c(NH4+) =c(Cl―)>c(OH―)=c(H+)
下列說(shuō)法正確的是
A.若①正確,則溶液中溶質(zhì)一定為NH4Cl
B.若③正確,則溶液中c(NH3?H2O) + c(NH4+)>c(Cl―)
C.若④正確,且鹽酸和氨水體積相等,則鹽酸中c(H+)等于氨水中c(OH―)
D.溶質(zhì)不同時(shí),上述四種關(guān)系式均可能成立
25.(15分)有機(jī)物A僅含C、H、O三種元素組成,能與小蘇打反應(yīng)產(chǎn)生CO2,A蒸氣對(duì)氫氣的相對(duì)密度是30。
(1)① A分子中官能團(tuán)的名稱(chēng)是
。
②
A與小蘇打溶液反應(yīng)的離子方程式是 。
(2)A可以通過(guò)下列變化得到環(huán)狀化合物D:
① C→D的化學(xué)方程式是
。
② 已知:
C的一種同系物結(jié)構(gòu)簡(jiǎn)式是
,俗稱(chēng)乳酸,乳酸經(jīng)過(guò)聚合
制得的聚乳酸樹(shù)脂,可以廣泛用于醫(yī)療、包裝、紡織等行業(yè)。 若用丙烯(其他無(wú)機(jī)試劑任選)為原料合成乳酸,合成過(guò)程中涉及到的反應(yīng)類(lèi)型依次是
。
(3)在(2)中的B經(jīng)過(guò)以下合成路線可以得到食用香精菠蘿酯:
① 下列敘述不正確的是 (填字母代號(hào))。
a.已知B是一種有毒物質(zhì),可用氫氧化鈉溶液除去菠蘿酯中殘留的B
b.甲分子中與三個(gè)碳原子處于同一平面的原子至少還有三個(gè)
c.菠蘿酯易溶于水,且能使酸性KMnO4溶液褪色
d.菠蘿酯在稀硫酸中能穩(wěn)定存在
②
E有多種同分異構(gòu)體,寫(xiě)出符合下列條件的所有同分異構(gòu)體的結(jié)構(gòu)簡(jiǎn)式
。
a.分子內(nèi)含有羧基
b.是芳香族化合物,且不與FeCl3溶液發(fā)生顯色反應(yīng)
c.1
mol物質(zhì)和足量的金屬鈉反應(yīng)產(chǎn)生1 mol氫氣
26.(14分)X、Y、Z、W四種物質(zhì)有如下相互轉(zhuǎn)化關(guān)系(其中X、W單質(zhì),Y、Z為化合物,未列出反應(yīng)條件)。
Ⅰ.若Z是生活中常用的調(diào)味品,W遇淀粉溶液變藍(lán),則:
(1)常溫下,X的顏色是
。
(2)工業(yè)上Z有多種用途,用化學(xué)方程式表示Z的一種用途
。
(3)生活中所用的Z加入了碘酸鉀,過(guò)量X與Y溶液反應(yīng)時(shí)可以得到一種碘酸鹽,此反應(yīng)的離子方程式是
。
Ⅱ.若X是工業(yè)上用量最大的金屬單質(zhì),Z是一種具有磁性的黑色晶體,則:
(1)X與Y反應(yīng)的化學(xué)方程式是
。
(2)若用下列裝置只進(jìn)行Z
+ W
X + Y反應(yīng)(夾持裝置未畫(huà)出):
① 完成此實(shí)驗(yàn)有多步操作,其中三步是:
a.點(diǎn)燃酒精燈
b.滴加鹽酸
c.檢驗(yàn)氣體純度
這三步操作的先后順序是
(填字母)。
②為保證實(shí)驗(yàn)成功,上述裝置需要改進(jìn),方法是(用文字?jǐn)⑹觯?u>
。
(3)將3.48 g Z加入50
mL 4 mol/L的稀HNO3中充分反應(yīng),產(chǎn)生112
mL的NO(標(biāo)準(zhǔn)狀況),向反應(yīng)后的溶液中滴加NaOH溶液能產(chǎn)生沉淀。當(dāng)沉淀量最多,至少需要加入2 mol/L的NaOH溶液 mL (精確到0.1)。
27.(15分)現(xiàn)有四種短周期元素X、Y、Z、W,其中:
① X、W原子的電子層數(shù)與最外層電子數(shù)之比分別為3:1和 1:3
② Y原子是元素周期表中原子半徑最小的
③ Z是形成化合物種類(lèi)最多的元素
回答下列問(wèn)題:
(1)X元素在周期表中的位置是
。
(2)上述四種元素中,只由一種元素的原子構(gòu)成的離子是
(填離子符號(hào))。
(3)化合物X2W2的電子式是 。
(4) 向含1 mol Na2SiO3的溶液中緩慢通入2
mol的ZO2,反應(yīng)的離子方程式是
。
反應(yīng)后溶液中陰離子濃度由大到小的順序是
。
(5)由Y、Z、W元素中的兩種或三種可以組成多種分子,其中含有18個(gè)電子的分子是
(填化學(xué)式)。
(6)用KMnO4溶液可以通過(guò)滴定來(lái)測(cè)定Y2Z2W4溶液的物質(zhì)的量濃度。向25.00
mL 的Y2Z2W4溶液中加入5.00
mL 0.50 mol/L酸性KMnO4溶液恰好完全反應(yīng),得到ZO2和Mn2+,則此種Y2Z2W4溶液的物質(zhì)的量濃度是
mol/L。
28.(16分)已知甲、乙、丙均為常見(jiàn)氣體,其中甲在空氣中含量最多,乙在相同條件下密度最小,丙有刺激性氣味,且一個(gè)丙分子由四個(gè)原子構(gòu)成。
(1)實(shí)驗(yàn)室中可用下圖A或B裝置與相應(yīng)的藥品制得丙。
①
A中試管內(nèi)反應(yīng)的化學(xué)方程式是
。
②
B中分液漏斗內(nèi)盛放的物質(zhì)丁是 ,圓底燒瓶?jī)?nèi)的物質(zhì)是
。(均填名稱(chēng))
(2)工業(yè)上將甲和乙在高溫、高壓、催化劑的條件下制取丙。下圖是甲和乙反應(yīng)過(guò)程中能量變化圖:
該反應(yīng)的熱化學(xué)方程式是
。
(3)丙在氧氣中燃燒的反應(yīng)是置換反應(yīng),該反應(yīng)的化學(xué)方程式是 。
(4)① 將丙和CO2氣體通入飽和食鹽水中有碳酸氫鈉晶體析出,反應(yīng)的離子方程式是
。
②為了驗(yàn)證上述晶體既不是NH4HCO3、也不是NaCl而是NaHCO3,設(shè)計(jì)實(shí)驗(yàn)方案如下,完成下列部分實(shí)驗(yàn)報(bào)告:
實(shí)驗(yàn)操作
實(shí)驗(yàn)現(xiàn)象
結(jié)論
相應(yīng)的離子方程式
取少量晶體于試管中,充分加熱
試管內(nèi)有固體剩余
固體全部溶解,有氣泡產(chǎn)生
(5)若用(1)中得A制取丙,并用園底燒瓶通過(guò)排氣法收集丙(標(biāo)準(zhǔn)狀況),然后進(jìn)行噴泉實(shí)驗(yàn)。當(dāng)水進(jìn)入到燒瓶體積得3/5時(shí),液面不再上升,此時(shí)立即關(guān)閉止水夾,燒瓶?jī)?nèi)溶液中溶質(zhì)的物質(zhì)的量濃度是 mol/L(精確到0.001)。
化學(xué)答案
5
6
7
8
9
10
11
12
A
C
C
D
B
A
D
B
25.(15分)
(1)①
羧基 (2分)
② CH3COOH + HCO3―
== CH3COO―
+ CO2↑ + H2O
(2分)
(2)①
(2分)
② 加成反應(yīng)、取代反應(yīng)(水解反應(yīng))、氧化反應(yīng)、氧化反應(yīng)、加成反應(yīng)(還原反應(yīng))
(答案合理均給分,3分)
(3)① a c d
(2分)
②
(各1分,共4分)
26.(每空2分,共14分)
Ⅰ.
(1)黃綠色
(2)2
NaCl +2 H2O
H2↑+ Cl2↑ + 2 NaOH (答案合理均給分)
(3)3
Cl2 + I― + 3 H2O == 6 Cl- + IO3―
+ 6 H+
Ⅱ.
(1)3 Fe + 4 H2O Fe3O4
+ 4 H2
(2)
① b c a
②在甲、乙裝置中間增加一個(gè)裝有水的洗氣瓶 (答案合理均給分)
(3)97.5
27.(15分)
(1)第三周期、第ⅠA族
(2分)
(2)Na+、H+、O2-、O22―、C22―
(2分)
(3)
(2分)
(4) 2 CO2 + 2 H2O + SiO32― == 2
HCO3― + H2SiO3↓
(2分) c(HCO3―)>c(O H―)>c(CO32―) (答案合理均給分,2分)
(5)H2O2、CH4O、C2H6
(各1分,共3分)
(6)0.25
(2分)
28.(16分)
(1) ① 2 NH4Cl + Ca(OH)2 CaCl2
+ 2 NH3↑+ 2 H2O
(2分)
② 濃氨水; 氧化鈣(氫氧化鈉或堿石灰 ) (答案合理給分;各1分,2分)
(2) N2(g)+ 3H2(g) 2NH3(g) ;△H = ―92kJ/mol
(2分)
(3) 4NH3 + 3O2 2N2 + 6H2O
(2分)
(4)① NH3
+ CO2 + H2O + Na+ NaHCO3↓ + NH4+ (2分)
②
(每空1分,共4分)
實(shí)驗(yàn)報(bào)告:
實(shí)驗(yàn)操作
實(shí)驗(yàn)現(xiàn)象
結(jié)論
相應(yīng)的離子方程式
該晶體不是NH4HCO3
向冷卻后試管中加入足量鹽酸
該晶體不是NaCl,是NaHCO3
CO32―+ 2H+ = H2O +
CO2↑
(5) 0.0045
(2分)
試題詳情
2009年廣東高考英語(yǔ)語(yǔ)法填空練習(xí)40篇
(1)
In the United States, there were 222 people
1_________ (report) to be billionaires(億萬(wàn)富翁) in 2003. The 2_________ of高考資源網(wǎng) these is Bill
Gates, worth at least $ 41 billion, who made his money 3__________ starting the
company Microsoft. Mr. Gates was only 21 years old 4_________ he first helped
to set 5_________ the company in 1976. He was a billionaire by the time he was
31. w.w.w.k.s.5.u.c.o.m
6_________, there are still some other
people who have made lots of money at even 7_________ (young) ages. Other young people who have struck it rich include Jackie
Coogan and Shirley Temple. 8________ of these child actors made over a million
dollars 9_________ (act) in movies
before they were 14. But the youngest billionaire is Albert von Thurn und Taxis
of Germany, 10_________ inherited (繼承) a billion dollars when he turned 18 in 2001!
w.w.w.k.s.5.u.c.o.m
(2)
Finishing their
shopping at the supermarket, a middle-aged couple found their new car 1__________
(steal).
They filed a report 2__________the police station and a detective drove
them back 3___________ the parking lot to look for evidence.
To their 4___________ (amaze),
the car had been returned 5__________ there was a note in it that said:
“I apologize for taking your car. My wife was having a baby and I had to send
her to the 6____________ as soon as possible. Please forget the
inconvenience. There are two tickets 7___________ tonight's Rowan
Atkinson concert.”
Their faith in humanity restored(恢復(fù)). The couple attended 8_________ concert.
But when they returned home, they immediately found that their house
9___________
(be) ransacked (洗劫). On the bathroom mirror was 10__________
note: “I have to put my kid through college somehow, don't I?”
(3)
People
1_________ (live) in different countries made
different kinds of words. Today there are about fifteen hundred 2_________ in
the world. Each contains many thousands of words. A very large dictionary, for
example, contains four 3_________ five hundred thousand words. But we do not need
4_________ these. To read short stories you need to know only about two
thousand words. 5_________ you leave school, you will learn only one thousand
or more.
The words you
know are called your vocabulary. You should try to make your vocabulary
6__________ (big). Read as many books as we can.
There are a lot of books 7__________ (write) in easy
English. You will enjoy them. When you meet 8_________ new word, look it
9_________ in your dictionary. Your dictionary is your 10__________ (much) useful book.
(4)
When you are in England you must be very
careful in the streets 1_________ the traffic drives on the left. Before you
cross a street you must look to the right first 2__________ then the left. In
the morning and in the evening when people go to or come from 3__________, the
streets are very busy. Traffic is most 4________ (danger) then.
When you go by bus in England, you have to
be careful, 5_________. Always remember the traffic moves on the left. So you
must be careful. 6_________ (have) a look
first, or you will go 7_________ wrong way.
In many English cities, there are big buses
8_________ two floors. You can sit on the 9_________ (two) floor. From 10_________ you can see the city very well. It’s very
interesting.
w.w.w.k.s.5.u.c.o.m
(5)
1________ artist had a small daughter.
Sometimes he painted women 2_________ any clothes on, and he and his 3________
always tried to keep the small girl out 4_________ he was doing this, “She is
5_________ young to understand,” they said.
But one day, when the artist 6_________ (paint) a woman with no clothes on, he forgot to lock the door, and the
girl suddenly ran into the room. Her mother ran up the stairs 7________ her,
but when she got to the room, the little girl was already in the room and
looking at the woman. 8________ her parents waited for her to speak.
For a few seconds the little girl said
9_________, but then she ran to her mother and said 10________ (angry), “Why do you let her go about without shoes and socks on when you
don’t let me?”
(6)
Most Americans
don’t like to get advice 1___________members of their family. They get advice
from “2__________ (strange)”. When they need advice, they don’t usually go to
people they know. 3__________ many of them write letters to newspapers and
magazines 4_________ give advice on many different subjects, 5__________ (include)
family problems, the use of language, health, cooking, child care, clothes, and
even on how 6__________ (buy) a house or a car.
Most newspapers
regularly print letters from 7___________ (read) with problems. Along with the letters
8___________ are answers written by people who are supposed to know how to
solve such problems. Some of these writers are doctors, 9__________ are lawyers
or educators. But two of the most famous writers of advice are women without
special 10_________ (train) for this kind of work.
(7)
Without proper planning, tourism
can cause 1_________. For example, too many tourists can crowd public places
2__________ are also enjoyed by the inhabitants(居民)
of a country. If tourism creates too much traffic, the inhabitants will become
3__________ (annoy)
and unhappy. They begin to dislike tourists 4_________ to treat them
impolitely. They forget how much tourism can help the country’s economy.
5__________ is important to think about the people of a destination country and
6__________tourism affects them. Tourism should help 7_________ country keep
the customs and beauty that attracts tourists. Tourism should also advance the
wealth and 8_________ (happy) of local inhabitants.
Too much tourism can be a problem.
If tourism 9__________ (grow) too quickly, people must leave other jobs to work
10__________ the tourism industry. This means that other parts of the country’s
economy can suffer.
w.w.w.k.s.5.u.c.o.m
(8)
London was
awarded 1_________ 2012 Olympic Games on Wednesday, 2__________ (defeat)
European rival Paris in the final round of voting to take the games back to
British capital 3__________ the first time since 1948.
4_________
Moscow, New York and Madrid were eliminated (淘汰)
in the first three rounds London beat Paris 54—50 on the fourth ballot(投票表決) of the IOC.
In London
crowds cheered and waved flags as 5_________ watched the announcement from
Singapore 6_________ a giant screen in Trafalgar Square and in the east London
area 7________ the main Olympic complex (建筑群) will be based.
Blair spent two
days in lobbying(游說(shuō)) in Singapore 8_________ leaving to
host the G8 summit (8國(guó)峰會(huì)) in Scotland. “My promise to you is we will be your
very 9_________ (good)
partners,” Blair said.
It’s the fourth
bid (申辦) from Britain after 10_________ (fail) attempts by
Birmingham for the 1992 Olympics and Manchester for the 1996 and 2000.
w.w.w.k.s.5.u.c.o.m
(9)
Why is setting
goals so 1___________? Because goals can help you do, be, 2___________
experience everything you want in life. Instead 3_________ just letting life
happen to you, goals allow 4___________ to make your life happen.
5__________ (success)
and happy people have set lots of goals to help them reach their aims. By
setting goals you are taking control of your life. It’s 6_________ having a map
to show you 7_________ you want to go.
Winners in life
set goals and follow through with them. Winners decide 8__________they want in
life and then get there by making plans and setting goals. Unsuccessful people
just let life happen by accident. Goals aren’t difficult to set, and
9__________aren’t difficult to reach. It is up to you to find out what your
goals really are. You are 10_________one who must decide what to do and in what
direction to aim your life.
(10)
We often think
of future. We often wonder 1__________the world will be like in a hundred
years’ time.
Think of
2__________ space. Perhaps a permanent station on the 3__________will have been
set up. Perhaps people will be able to visit the moon as 4__________. Cheap
rockets for space travel will have been developed, 5_________ (permit)
long journeys through the solar system. When that time comes, people will be
taking holidays in space and visiting 6_________ planets. Great progress will
have been made 7__________ medicine, too. Pollution will have been controlled
in a hundred years’ time.
All the world
will have been developed—even Antarctica. We will have used 8__________ most of
the earth’s land to build our cities, 9___________ floating cities will have
been built. The Japanese have already plans of this kind. And there will be
cities 10__________ the sea.
(11)
The Internet as become part of young
people’s life. 1_________ report shows that 38% of students often use the
Internet . Most of them get 2__________ (use) information
on the Internet 3_________ use the Internet to help in their studies. But many
students don’t use it 4_________ a good way. Some play games too much, some
visit websites 5_________ shouldn’t look at. So bad things may happen
6_________ students spend too much time on the Internet.
7_________ is important for students to use
the Internet properly. Now we have a textbook, 8_________ uses many examples to
teach students some good ways to use the Internet. It gives useful advice.
Some students also make 9_________ on the
Internet. But if you want to have a face-to-face 10_________ (meet) with your online friends, let your parents know and meet in a
proper place.
w.w.w.k.s.5.u.c.o.m
(12)
Rivers are one of our most important natural
resources. Many of the world’s great 1_________ are located on rivers, and
almost 2__________ country has at least one river flowing through it that plays
3__________ important part in the lives of its people.
Since the beginning of history, people
4_________ (use) rivers for transportation. The
longest one in the United States is the Mississippi, and the lifeline of Egypt
is the Nile.5 __________ transportation, rivers give water to drink, water for
crops, and chances for fun and recreation for the people 6_________ live along
their banks.
However, large cities and industries that
are located on rivers often make problems. As the cities grow 7__________ size
and industries increase in number, the water in the rivers becomes 8__________ (pollute) with chemicals and other
materials. People are learning the 9__________ (important) of doing more to keep their rivers clean 10__________ they want to
enjoy the benefits of this natural resource.
(13)
Liu Xiang was the first Asian 1___________ (win) the men’s 110m hurdles at the Olympics in Athens. 2__________ that
he became an idol(偶像) to the young
people.
“I never thought I would run under 13
seconds and break the Olympic 3__________.”said Liu Xiang in tears, “I am very
very excited. I’m proud not just for myself and for Chinese 4_________ for
Asia. My race went 5___________ (wonderful) from start to finish.” Liu added. “It is 6__________ amazing
experience being the Olympic champion. I want to thank my coach and my friends
for 7_________their help. I think today we Chinese have showed the world we
8_________ run as fast as anybody else.”
Since his return from Athens, Liu Xiang
9__________ (be) at the center of a media circus
and he has been to many press appearances and meetings. But Liu thinks 2004 is
just the beginning, and he expects to be at his peak in the 2008 Beijing
Olympics. Liu said, “For some players, it’s just a job. For me, it’s
10_________ I love.”
w.w.w.k.s.5.u.c.o.m
(14)
Will 1_________ matter if you don’t take
your breakfast? Some time ago a test 2__________ (give) in the
United Sates. Those tests included people of different 3__________ from 12 to
83. During the experiment, these people were given all kinds of breakfasts, and
sometimes they got 4___________ breakfast at all. Special tests were set up to
see 5___________ well their bodies worked and when they had eaten 6___________
certain kind of breakfast. The results show that if a person eats a proper
breakfast, he or she will work with better effect 7___________ if he or she has
no breakfast. This fact appears to be 8___________ (especial) true if a person works 9__________
his brains. For example, if a student eats fruit, eggs, bread and milk before
going to school, he will learn more quickly and listen with 10__________ (much) attention in class.
(15)
Enough sleep is important to health. The
amount of sleep needed 1__________ on the age of the person and the conditions
in 2__________ sleep takes place. The young may need more sleep than
3__________ old, but usually eight hours are enough for the health of
grown-ups. Some can do with 4__________ than this amount, but others may need
more. Every person knows his own need. 5__________ is then a matter of good
judgment to satisfy his need. Sleep 6__________ always be enough to make one
bring back his 7__________ (strong) and get
ready for a day’s work.
Fresh air is necessary to sound sleep. So it is not 8___________ reason
for some people to think that it is practicable to sleep in the open air. A
bath at bedtime, 9__________ hot nor cool but of body temperature, may be
helpful to sleep. Sleepproducing drug(幫助睡眠的藥物) should never be taken except when 10__________ (suggest) by a doctor.
w.w.w.k.s.5.u.c.o.m
(16)
Snake dishes have become popular 1________
recent years. Snake meat in various flavors (風(fēng)味) can 2_________ (see) in
restaurant ads very often. Eating snake seems to be now in vogue(盛行), and if you haven’t eaten snake
yet, you are considered “out of date”. But I wonder 3__________ all the trends
are worth following.
Some people may defend themselves
4__________ saying that snake meat is nutritious. But these people don’t
realize that many parasites(寄生蟲(chóng)),5_________ do harm to our health, are found inside snakes.
According 6________ a survey, about 1000
tons of snakes are eaten every year in China and sometimes as 7__________ as 10
tons of snakes are served on dinner tables in Shenzhen in a single day!
These figures warns us that if no action is
taken, 8_________ number of snakes will drop and make an increase in mice and
worms population, which will 9_________ in a decrease(減產(chǎn)) of crop output. Who will see
such tragedy happen?
So let’s start not to eat snakes any more
because “to protect the snake is to protect 10__________.”
w.w.w.k.s.5.u.c.o.m
(17)
A few years ago, SARS 1_________ out in the
mainland of China, causing some people 2_________ (kill). And some nearly got close to death. The situation was so severe
that there was3_________ time to debate who is to blame. The most important
thing for the government to do is to find out the 4__________ of this deadly
disease. They invited all the most 5___________ (experience) experts in this field to discuss and quite a few suggestions were
put forward. Some of the top experts then tested them to see 6_________ they
were available. Doctor Zhong Nanshan chose one patient who was seriously ill
and had little hope 7_________ picking up and had the new medicine tested on
him. 8__________ his great joy, this patient recovered! He made his way to his
office and telephoned the top official, 9_________ (tell) him this exciting news. For convenience, he moved to live in his
office. His method did make sense. Not soon after that, the 10_________
hospitals also controlled this terrible disease and kicked it out finally.
(18)
I asked my uncle, who plays 1_________ piano
well, 2_________ he would assess (評(píng)定) the tone of a second hand piano I was hoping to buy. We arrived
3__________ the house and Uncle Frank looked the piano over, then 4__________ (sit) down and played a mixture of honky-tonk numbers and classical
pieces. When he finished, we told the family that we would call 5__________ in
15 minutes.
Outside, Uncle Frank said that 6___________
the wood was battered (壞掉的),the sound was good and we should buy it.
When I phoned the woman back, she sounded as
if she was crying. Concerned, I asked, “What’s the 7__________?”
“We didn’t know the piano 8___________ play
like that,” she replied. The piano wasn’t 9__________ sale, and her daughter
had to resume(重新開(kāi)始) taking
piano 10__________.
w.w.w.k.s.5.u.c.o.m
(19)
In North America people are always in
1__________ hurry. Children have special lessons or sports activities
2__________ school. Parents often work late and 3___________ get home until 7
or 8 o’clock at night. Most North American families don’t have time to prepare
a meal. That is 4___________ fast food is so popular in North America. People
5__________ about 40% of their dollars on fast food.
People usually buy fast food from restaurant
chains such as Pizza Hut, McDonald’s, or KFC, 6_________ they can enjoy pizza,
sandwiches, fried chicken, and so on. Fast food saves work and time, but it is
not 7___________ (nutrition).
Fast food is popular in many countries.
American fast-food companies now have restaurants all over the world. But not
8__________ is happy about the spread(擴(kuò)展) of North American fast food. A group of people in Italy want to
fight 9__________ the spread of American fast food. They don’t like the idea of
more fast food chains 10___________(open) restaurants
in their country.
(20)
Many people keep small fish 1_________ pets.
They keep them in a tank of water. The tank is made of glass. People can
2_________ through it. They can see inside the tank and watch the fish.
The fish need room. They mustn’t be crowded.
They need 3_________ to breathe. 4__________ must be enough water for all fish.
So the size of the tank is very important.
In the tank people put small plants
5__________ are good for fish. They give oxygen to the water. Plants help in
other ways, too. They can hide 6_________ the plants and sleep, lay eggs there. w.w.w.k.s.5.u.c.o.m
The fish 7_________ be kept in water all the
time. Some can jump high. So the tank should be covered. This keeps the fish
from 8__________ (jump) out.
The fish need food and should be fed every
day. But 9__________ you give them too much food, it is very bad, for the extra
food will fall to the bottom and make the water dirty. So the fish should get
just enough food and finish 10_________ in ten minutes. Nothing should be left.
(21)
Once upon a time there was a rich merchant 1 ________ had 4 wives. He loved the
4th wife the most. He took great care of her and gave her nothing 2__________
the best. He also loved the 3rd wife very much. He was very 3 ___________ (pride) of
her and always wanted to show off her to his friends. He also loved his 2nd
wife. She is 4 ___________very considerate person, always patient and in
fact is the merchant’s close friend. 5___________ the merchant faced
some problems, he always turned to his 2nd wife and 6____________
would always help him out and tide(幫助渡過(guò)) him 7__________ difficult times. Now, the merchant’s 1st wife is a very
loyal partner and has made great 8___________ (contribute) in maintaining his wealth and business as well as
9___________ (take)
care of the household. 10___________, the merchant did not love the first wife
and although she loved him deeply, he hardly took notice of her.
(22)
There once were a goat and a donkey 1___________
lived on a farm. The donkey worked the hardest so the farmer fed it the
most 2___________. Sometimes
the donkey was given more food 3 __________ it could eat. This made the
goat so jealous 4__________ it began plotting against(謀劃對(duì)付) the donkey. "Hey, donkey," the goat
said one day. "I think you do too much work on this farm. You carry such
heavy things from morning to night. Why don't you pretend 5__________(get) sick so you can
take a day 6___________?'' The donkey thought the goat had a great idea. So the
next morning, the donkey lay in the stable(畜欄)
on its side with its eyes 7__________ (close). Right away, the farmer called the doctor.
8____________ looking at the donkey, the doctor said it needed a special
medicine made 9___________ the heart of a goat. So the farmer killed 10__________
goat and gave the donkey medicine made from its heart.
w.w.w.k.s.5.u.c.o.m
(23)
Dawn graduated
several years ago. She 1 __________ (be) a successful model,
and finding a job had not been a 2__________ ---until recently.
When Dawn did start
trying to find another type of 3__________, she found in interview after
interview that computer literacy(能力)was a must to
4___________ (employ).
Since Dawn had always
been afraid 5_________ learning computer while in college—our school didn't
require to learn computer at that time—she managed to get a degree 6_________
ever confronting(面對(duì)) a computer.
Finally, after months
of searching for a job, Dawn failed. She had to admit that sidestepping (回避) computer literacy(讀寫(xiě)能力) hadn't been a good
idea. 7___________, She enrolled in a computer course at 8 ____adult
vocational school.
9____________(surprise), although she had been afraid of learning computer, she took to
computers10__________much that after about a year she opened her own
computer-based business.
w.w.w.k.s.5.u.c.o.m
(24)
Some day,1_________you are lucky, you may
see a bongo(大羚羊). But the
only way most people will see it is in a 2__________. They are found in Africa,
3__________ they live deep in forests. Even in Africa, very few people ever get
to see a bongo. The bongo does not come out of the forest very often. It is an
animal that keeps to 4__________.
The bongo has beautiful coloring. Its hair
is bright brown 5_________ (mix) with orange
and red. Down its back and across its sides the bongo has yellow-white strips(條紋). Animals that look 6__________
food at night usually have big eyes. This helps them see 7________ (good) at night. The forests in which bongos live are very dark. The eyes
of bongos are very big. So, they have no trouble 8_________ (live) in the darkness.
Bongos in zoos do not like to go outside on
9_________days. They only go outside on those days 10_________ it is dark or
very cloudy.
(25)
Gandhi, an Indian national hero, was honored
1__________ the father of the Indian nation. He has been respected and
beloved by the Indians.
He was born in India in 1869. Following the
local custom, he got 2__________(marry) at the age
of 13. In 1888 he sailed to England, 3__________ he studied law for three years
and became a lawyer. On his return to India, he was sent to South Africa to
work on a law case.
In South Africa he 4__________ (surprise) to find that the problem of racial
discrimination (種族歧視)was
serious. There he formed an organization and started a magazine to fight 5__________
equal rights.
Gandhi returned to India in 1915,
6__________ India was controlled by the British. He led the Indians to fight
for an end to the British rule and 7___________ (depend) for his country. In the political
movement many Indians including Gandhi were put in prison. 8___________, the
struggles never stopped. The British government had to give 9___________and
India won its independence in 1947. 10___________(fortunate) Gandhi was shot by an Indian who opposed his views and died on
January 30th, 1948. w.w.w.k.s.5.u.c.o.m
(26)
Mrs. Wilson, the wife of a rich man, 1___________some
of her friends to lunch. She was trying a new way to cook fish and she was very
pleased with 2__________when the fish was ready. As the fish was very
hot, she put it near the open window to 3_________ _for a few minutes.
Five minutes later, when she came back for it, she was 4___________to
find the neighbor’s cat at the fish. She was in time to stop the cat
5____________ it was too late. That afternoon every one enjoyed the fish. They
talked and laughed 6__________four o’clock.
After the guests left, Mrs. Wilson felt
tired 7_________ happy. She was sitting down in a chair near the window when
she saw the neighbor’s cat dead in her garden. She was sure the fish was bad.
What 8__________ happen to
her friends? She at once telephoned the family doctor for help. The doctor
liked each guest 9___________ (meet) him. Once
again Mrs. Wilson was alone in her chair still tired but not longer happy. Just
then the telephone rang. 10__________ was her neighbor, “Oh, Mrs. Wilson,” he
cried.” My cat is dead. She was killed by someone in a car and put in your
garden….”
(27)
Nowadays, almost everyone 1__________(realize) that smoking is 2__________ (harm) to people’s health. Sometimes it 3__________ causes fire.
In China, about 38% of the people smoke.
Every year, they smoke millions of packets of 4__________. It’s bad news for
the health of nation.
It’s known that smoking can cause different
kinds of disease. Every year, many people die 5_________ these illnesses, such
as lung and throat cancers. It also costs the government much money to look
6___________ these sick people. Smoking is also harmful to those 7________
don’t smoke, 8___________ (especial) to children and women.
In a word, smoking is no good. 9__________
you want to smoke, just think of those who suffer from diseases 10_________ the
fires that destroy people’s lives and properties!
(28)
Many people like to 1_________ the latest
newspaper. But 2_________ is it produced so quickly?
The most important man may be 3__________
chief editor. He decides 4__________ to do. Every morning the 5___________ (journal) are sent to report the events.
Sometimes they need a face-to-face interview with people 6_________ do
telephone interviews. Meanwhile, the picture editor sends photographer to take
the 7___________ they need.
Later in the day, they pass the stories and
the 8___________ (develop) photos to the editor.
The chief editor will choose the most
important news for the front page. 9___________ editors read the stories, make
some necessary changes and write headlines for them. 10___________ the
newspaper is printed and delivered to different places.
w.w.w.k.s.5.u.c.o.m
(29)
With the 1____________ (develop) of industry, air pollution is
getting more and more serious. In Beijing, many people suffer different kinds
of illnesses because 2___________ air pollution.
Air pollution is caused by the following
3_________: about half of the problem is caused by vehicles. There are more and
more cars, buses on the roads, and they give off 4__________ (poison) gases. 25% of air pollution is
caused by factories. Another factor is the smokers. Smoking not only does harm
to their health 5__________ to others. 6_________ these, about 10%of air
pollution is caused by other reasons.
We should take some measures to fight
7____________ pollution. New fuel can be used to take 8___________ place of
gas. We can plant more trees. If everybody realizes the 9___________ (important) of environment and does something
to stop pollution, the problem will 10____________ (solve).
(30)
Recently, a website has carried 1__________
a survey about the common view on graduates 2__________ Beijing University.
28% of the interviewed companies think that
they 3__________ (satisfy) with the graduates from Beijing
University. The graduates in their companies have a wide range of 4__________ (know) and they learn things very quickly and easily.
5___________, most of the companies don’t
think much of graduates from Beijing University. In their eyes, the graduates
always stick 6___________ their own opinions and lack the teamwork spirit
7__________ they are working. Besides, they may not be satisfied with their
jobs even with big companies, and they usually ask too 8___________. As a
result, 34% of the companies insist that 9__________ will not employ graduates
from Beijing University.
In brief, society and even the students
themselves expect too much from graduates from Beijing University. That’s
10__________ a graduate claims that he is rubbish.
(31)
Did you know that in the mountains it can
start to snow in August? It snows through the fall and winter. 1__________,
in spring, when all that snow melts, water falls down the mountain sides.
Streams(溪流) form and
come together to form 2__________ . Let’s follow one of the rivers in
Utah.
The Bear River begins nearly 13,000 feet 3__________
in the mountains. It ends only 90 miles away, 4__________ it will have dropped
about 9,000 feet first! The most surprising thing about this river is where 5_____
____ends. w.w.w.k.s.5.u.c.o.m
If you look at a map, you will see that
nearly all rivers 6_________(empty) into the
sea. But 7___________ the water of the Bear River. This river flows into
the Great Salt Lake, the largest lake in the West. The rivers and streams
8__________ flow into the lake bring with them about two million tons of salt
each year. And no fresh water flows away from the lake. 9___________,
the summer sun evaporates (蒸發(fā)) the fresh water, 10___________ (leave) the salt behind. The lake water is so salty that you can’t sink in
it, no matter how hard you try.
(32)
1 ___________ neither she nor her husband
smoked, Mrs. Trench was surprised to see cigarette ash on her doorstep as she
entered the house. When she opened the living-room door, she was astonished to
see a strange man fast 2__________ in an armchair! Taking care not to disturb
him, Mrs. Trench left the house at once. She called a taxi and went 3
__________(straight) to the police station. When she
got there, she lost no time to explain 4___________ had happened and added that
the man 5__________ have got into the house 6___________ an open window. Mrs.
Trench returned home 7___________ a police car together with two policemen. But
it was too late: the man had disappeared. 8___________ (hurry) upstairs, she went to her dressing-table. She smiled 9__________
relief when she saw the only thing that man had taken was an imitation(仿制品) diamond necklace that was
almost 10 ___________!
(33)
About six years ago I was eating lunch in a
restaurant in New York City 1___________ a woman and a yougn boy sat down
2___________ the next table. I couldn’t help 3__________ (overhear) parts of their conversation. At
one point 4___________ woman asked: “ So, how have you been?” And the boy,
5__________
couldn’t have been more than seven or eight
years old, replied, “Frankly, I’ve been feeling a little depressed lately.”
This incident 6___________ (stick) in my mind
because it confirmed my growing belief that children are cahnging. As
7___________ as I can remember, my friends and I didn’t find out we were
“depressed” until we were in high school. The evidence of a change in children
8__________ (increase) steadily in recent years. Children
don’t seem childlike anymore. Children speak more like adults, dress more like
adults and behave more like adults 9___________ they used to. 10___________
this is good or bad is difficult to say, but it certainly is different.
Children as it once was no longer exists, why?
(34)
Johnny Carson began his career in television 1 ____________ his
twenties. First he worked at local stations in Nebraska. Several years
2___________, he moved to Los Angeles, California. It was “The Tonight Show”
3____________ made Johnny Carson famous for thirty years. He became 4
____________ most popular star of American television. He 5_____________ (call) “the king of late night.” Critics said Americans from all parts of
the country liked him and felt they knew him. w.w.w.k.s.5.u.c.o.m
He did not take his fame 6_____________ (serious). For example, when asked 7____________ he became a “star”, he
answered: “I started in a gaseous (氣體的) state and I cooled.” Carson’s special skill was his sense of
8____________. Audiences laughed at his jokes he made at the beginning of his
show. However, sometimes they laughed 9____________ harder at the jokes that
failed. He was the most powerful performer on televison. Many 10____________ (comedy) and singers became successful
after appearing on “The Tonight Show”.
(35)
Although many Chinese students say that
1____________ knowledge of English grammar is good, 2 ____________most would
admit that their oral English is poor.
3 ____________ I speak to a Chinese student
they always say, “My oral English is poor.” 4 ____________, their oral English
does not have to remain “poor!” I would like to suggest that there may be some
reasons 5_____________ their problems with oral English.
First, they fail to find suitable words to
express 6_____________ due to (由于) a limited vocabulary. 7_____________, they are afraid of making
mistakes. The third reason is that not enough attention 8 ______________ (pay) to listening.
9_____________ you use your English beyond the classroom you will forget
what English you know. Remember: USE IT OR LOSE IT! You can learn how to speak
English better 10____________ speaking English more.
(36)
Until recently daydreaming was viewed as a
waste of time. Or it ___1_______(consider) an unhealthy escape from real life and its duties. But now some
people are taking a fresh look at daydreaming. Some think it may be a very
______2_____ (health) thing to do. Some reseachers are
finding that daydreaming may be important to mental health. Daydreaming, they
tell us ,_____3___(be) a good means
of relaxation. But its benefits go 4 this.
A number of psychologists have conducted experiments and have reached some 5 (surprise) conclusions.
Dr. Joan T. Freyberg has conclued that
daydreaming contributes to intellectual growth. It ____6_____ improves 7 (concentrate),attention span, and the ability to get along with others.
Idustrialist Henry J. Kaiser believed that much of his success was due to the
positive use of daydreaming. Florence Nightingale dreamed of becoming a nurse.
The young Thomas Edison pictured 8 as an inventor. For these notable
achieveers, it appears 9 their daydreams
came true. Dr. Harry Emerson Fosdick offered this advice: “hold a picture of
yourself… in your mind’s eye, and you will be drawn toward it. Picture yourself 10 as defeated and that alone will make
victory impossible. w.w.w.k.s.5.u.c.o.m
(37)
We ofter think of future. We often wonder
____1____ the world will be like a hundred years’ time.
Think of 2 space. Perhaps a
permanent station on the moon 3 (set up). Perhapes
people will be able to visit the moon as 4 . Cheap rockets for space travel will
have been developed, 5 (permit) long
journeys through the solar system. When that time comes, people will be taking
holidays in space and visiting 6 planets. Great propress will have been
made 7 medicine, too. Pollution
will have been controlled in a hundred years’ time.
8 the world will have been developed—even
Antarctica. We will have used up most of the earth’s land to build our cities, 9 floating cities
will have been built. The Japanese have already plans of this kind. And there
will be cities 10 the sea.
(38)
In the United States, there were 222 people 1 (report) to be billionaires in 2003. The 2 of these is
Bill Gates, worth at least $41 billion, who made his money 3
starting the company Microsoft. Mr Gates was only 21 years old 4 he first helped to
set up the company in 1976. He was a billionaire 5 the time he was
31.
6 , there are still some other people who have made lots of money at
even
7 (young) ages. Other
young people who have struch it rich include Jackie Coogan and Shirley Temple. 8 of these
child actors made over a million dollars 9 (act) in movies
before they were 14. But 10 youngest
billionaire is Albert von Thurn and Taxis of Germany, who, in 2001, inherited a
billion dollars when he turned 18.
(39)
Most Americans don’t like to get advice 1 members of their family. They get advice
from “ 2 (strong).” When they need advice, they
don’t usually go to people thtey know. 3 many of them write
letters to newspaers and magazines 4 give advice on amny different subjects 5 (include) family problems, the use of
language, health, cooking, child care, clothes, 6 even on how
to buy a house or a car.
Most newspapers 7 (regular) print letters from readers with problems. Along with the letters
there are 8 written by people who
are supposed to know how to solve such problems. Some of these writers are
doctors, 9 are lawyers or educators. But two of
the most famous writers of advice are women without special 10 (train) for this
kind of work. w.w.w.k.s.5.u.c.o.m
(40)
When you are in England you must be very
careful in the streets 1 the traffic
drives on the left. Before you cross a street you msut look to the right first 2 then the left. In the
morning and in the evening when people go to or come from 3 , the streets are very
busy. Traffic is most 4 (danger) then.
When you go by bus in England, you have to be careful, 5 . always remember
the traffic moves on the left. So you must be careful. 6 Have a look first, or you will go 7 wrong way.
In many English cities, there are big buses 8 two floors. Your can sit on
the 9 (tow) floor, from 10 you can see the city
very well. It’s very interesting.
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